Compilare: main.cpp:4:0: warning: ignoring #pragma optimize [-Wunknown-pragmas] #pragma optimize "-O3" main.cpp: In function 'int32_t main()': main.cpp:202:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int len = 1;len <= s.size();len++) ~~~~^~~~~~~~~~~ main.cpp:204:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = len;i <= s.size();i++) ~~^~~~~~~~~~~ main.cpp:208:47: warning: array subscript has type 'char' [-Wchar-subscripts] ll aux = 1LL * p[k][len] * mapat[s[i - 1]] % mod[k]; ^ main.cpp:219:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 2;i <= s.size() - len + 1;i++) ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:229:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = len;i <= s.size();i++) ~~^~~~~~~~~~~ main.cpp:194:9: warning: unused variable 'start' [-Wunused-variable] double start = clock(); ^~~~~ main.cpp:172:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen(PROB_NAME".in", "r", stdin); ^ main.cpp:173:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen(PROB_NAME".out", "w", stdout); ^